Inner-sphere oxidation of 2-aminomethylpyridinecobalt(II) complex by N-bromosuccinimide |
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| Authors: | Abdel Hady Alaa El-Din M. Al-Shihri Ayed S. M. |
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| Affiliation: | (1) Chemistry Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia |
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| Abstract: | The kinetics of the oxidation of the 2-aminomethylpyridineCoII complex by N-bromosuccinimide (NBS), have been studied in aqueous solutions under various conditions, and obey the following rate law:Rate = [NBS][Co(L)(H2O)2]2+[k2+k3/[H+]]An inner-sphere mechanism is proposed for the oxidation pathway for both protonated and deprotonated complex species, with the formation of an intermediate, which is slowly converted into the final oxidation products. The reaction rate is increased by increasing the pH, T, [complex], and decreased by increasing ionic strength over the range studied. |
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